Kuyini NdFeB Magnets
Ngokwezinqubo zokukhiqiza,I-Neodymium Magnetszingahlukaniswa zibeI-Sintered NeodymiumfuthiI-Neodymium ehlanganisiwe.I-Bonded Neodymium inozibuthe kuzo zonke izinhlangothi futhi imelana nokugqwala;I-Sintered Neodymium ijwayele ukugqwala futhi idingaenamathelaendaweni yayo, ngokuvamile okuhlanganisa i-zinc plating, i-nickel plating, i-zinc plating evumelana nemvelo, i-nickel plating ehambisana nemvelo, i-nickel yethusi ye-nickel plating, i-nickel yethusi ye-nickel evumelana nemvelo, njll.
Ukuhlukaniswa Kwezibuthe Ze-Neodymium
Ngokuya ngendlela yokukhiqiza esetshenziswayo, izinto ze-Neodymium Magnet zingahlukaniswa zibeI-Sintered NeodymiumfuthiI-Neodymium ehlanganisiwe.I-Bonded Neodymium inozibuthe kuzo zonke izinhlangothi futhi imelana nokugqwala;I-Sintered Neodymium ijwayele ukugqwala futhi idingaenamathelaebusweni bayo, ngokuvamile okuhlanganisa i-zinc plating, i-nickel plating, i-zinc plating evumelana nemvelo, i-nickel plating evumelana nemvelo, i-nickel yethusi ye-nickel plating, i-nickel yethusi evumelana nemvelo, njll.iziceloezimpahleni zesimanje ezidinga ozibuthe abanamandla abangapheli, njengamamotho kagesi kumathuluzi angenazintambo, ama-hard disk drive, kanye nezibophelelo kazibuthe, athathe indawo yezinye izinhlobo zikamazibuthe.
Uhlobo oluvame kakhulu lwe-Rare-Earth Magnet iI-Neodymium Magnet, evame ukubizwa ngokuthi aNdFeB, i-NIB, noma uzibuthe we-Neo.I-Neodymium, i-Iron, ne-Boron yahlanganiswa ukuze kwakhiwe I-Permanent Magnet's Nd2Fe14B ye-tetragonal crystalline structure.Ama-Neodymium Magnets awuhlobo oluqine kakhulu lwe-Permanent Magnet okwamanje emakethe.Zathuthukiswa ngokuhlukana ngo-1984 ngabakwaGeneral Motors kanye neSumitomo Special Metals.
I-Neodymium Magnetiyimpahla eqinile eqinile enokuminyana okuphansi kodwa izakhiwo eziphakeme zemishini, futhi izindleko zayo zokukhiqiza ziphansi kunezinye Izinto Ezisetshenziswa Kabungane Ezihlala Njalo Zomhlaba Ezingavamile.Njengamanje, ngokusekelwe ekuqhathanisweni okuvundlile kwesabelo semakethe nesizukulwane sesithathu Sezinto Zezibuthe Ezihlala Kakhulu EziyiRare Earth, I-Neodymium Magnets inesabelo semakethe esiphezulu kanye nokukhiqizwa konyaka, okuphansi kuphela kunokushibhile.Ama-Ferrite Magnets.
Sintered NdFeB ozibuthezinezimfanelo zikazibuthe eziphakeme kakhulu futhi zisetshenziswa emikhakheni eminingana, okuhlanganisa nezinsimbi zezicabha, izinjini, amajeneretha, nezingxenye ezisindayo zezimboni.
Ozibuthe abacindezelwe ngesibophozinamandla kunozibuthe ababunjwe ngomjovo.
Umjovo wePlastiki NdFeB uzibutheiyinhlanganisela yezinto yesizukulwane esisha ehlanganisa impushana kazibuthe engapheli nepulasitiki, enezimfanelo ezingavamile zikazibuthe nezepulasitiki, kanye nokunemba okuphezulu nokumelana nokucindezeleka.
I-Sintered Neodymium Magnets
I-Sintered Neodymium Magnetiwuzibuthe oqinile wesimanje, ongagcini nje ngokuba nezici ezinhle kakhulu ezifana nokuqina okuphezulu, ukuphoqa okuphezulu, umkhiqizo wamandla kazibuthe aphezulu, kanye nesilinganiso samanani okusebenza okuphezulu kodwa futhi kulula ukusetshenzwa abe yizimo nobukhulu obuhlukahlukene, ikakhulukazi obufanele amandla aphezulu futhi izindawo eziphakeme kazibuthe, kanye nemikhiqizo ehlukahlukene eshintshwayo eyenziwe nge-miniaturized futhi engasindi.
Ama-Sintered Neodymium Magnets asetshenziswa kakhulu ezimotweni (ukushayela ugesi, isiteringi samandla kagesi, izinzwa, njll.), ukukhiqiza amandla omoya, imboni yolwazi (ama-hard disk drive, optical disk drives), ama-electronics abathengi (amaselula, amakhamera edijithali), yasendlini. izinto zikagesi (i-variable frequency air conditioning, amafriji, nemishini yokuwasha), ama-lifti linear motors, imishini ye-nuclear magnetic resonance imaging, njll. Ekwenziweni okuhlakaniphile, ukushayela okuhlakaniphile, okumelelwa amarobhothiIzinhlelo zokusebenzaezindaweni ezifana nezinkonzo ezihlakaniphile ziyakhula.
I-Bonded Neodymium Magnets
I-Bonded Neodymium Magnet iwuhlobo lwezinto ezihlanganisiwe zikazibuthe ezihlala njalo ezenziwe ngokuhlanganisa i-nanocrystalline neodymium iron boron magnetic powder ecisha ngokushesha ene-polymer ephezulu (njenge-thermosetting epoxy resin, amapulasitiki obunjiniyela be-thermoplastic, njll.) njengesibophelelo, sihlukaniswe sabaI-Bonded Neodymium Compressed MagnetsfuthiI-Bonded Neodymium Injection Magnets.Inokunemba okuphezulu kakhulu kobukhulu, ukufana kozibuthe okuhle, nokungaguquguquki, futhi ingenziwa ibe yizimo eziyinkimbinkimbi okunzima ukuzithola kumamagnet we-sintered neodymium futhi kulula ukukuhlanganisa nezinye izingxenye zensimbi noma zepulasitiki ukuze zakheke.I-Bonded Neodymium Magnets iphinde ibe nezindlela ezihlukahlukene zokuzibuthe, ukulahlekelwa kwamanje kwe-eddy ephansi, nokumelana nokugqwala okuqinile.
Ama-Bonded Neodymium Magnets asetshenziswa kakhulu ezimbonini zobuchwepheshe bolwazi ezifana nama-hard drive ekhompyutha nama-optical disc drive spindle motors, ama-printer/copier motors, namarola kazibuthe, kanye nezingxenye zokushayela nokulawula zezinto zikagesi zasendlini ezonga amandla ahlukahlukene kanye nama-electronics abathengi.Ukusetshenziswa kwabo kumamotho amancanyana nakhethekile kanye nezinzwa zezimoto zamandla amasha kancane kancane kuba imakethe ebusayo evelayo.
Incazelo Yamandla
I-Neodymium iyinsimbi ye-antiferromagnetic ebonisa izici kazibuthe lapho ihlanzekile, kodwa kuphela emazingeni okushisa angaphansi kuka-19 K (254.2 °C; 425.5 °F).Izinhlanganisela ze-Neodymium ezinezinsimbi ezishintshashintshayo ze-ferromagnetic njenge-iron, ezinamazinga okushisa e-Curie ngaphezu kwezinga lokushisa legumbi, zisetshenziselwa ukwakha omazibuthe be-neodymium.
Amandla kazibuthe we-Neodymium ayinhlanganisela yezinto ezihlukahlukene.Okubaluleke kakhulu i-uniaxial magnetocrystalline anisotropy ephakeme kakhulu ye-tetragonal Nd2Fe14B crystal structure (HA 7 T - amandla kazibuthe H ngamayunithi we-A/m ngokumelene nomzuzu kazibuthe ku-Am2).Lokhu kubonisa ukuthi ikristalu lento idonsa uzibuthe ngokuncamelayo ku-axis yekristalu ethile kodwa ikuthola kuyinselele enkulu ukwenza uzibuthe kwezinye izindawo.I-neodymium magnet alloy, njengabanye omazibuthe, yenziwe ngezinhlamvu ezincane ngesikhathi sokukhiqiza eziqondaniswe endaweni enamandla kazibuthe ukuze izimbazo zazo kazibuthe zonke zibheke ohlangothini olufanayo.I-compound inokuphoqelela okuphezulu kakhulu, noma ukumelana nokukhishwa kazibuthe, ngenxa yokumelana ne-crystal lattice ekuguquleni isiqondiso sayo se-magnetism.
Ngenxa yokuthi iqukethe ama-electron amane angabhanqiwe esakhiweni sawo se-electron njengoba kuqhathaniswa (ngokwesilinganiso) amathathu ensimbi, i-athomu ye-neodymium iyakwazi ukuba nomzuzu omkhulu we-dipole wamagnetic.Ama-electron angabhanqiwe akuzibuthe aqondaniswe ukuze ama-spins awo abheke ohlangothini olufanayo akhiqiza insimu kazibuthe.Lokhu kubangela i-saturation magnetization eqinile yenhlanganisela ye-Nd2Fe14B (Js 1.6 T noma 16 kG) kanye ne-magnetization eyinsalela ye-1.3 teslas.Ngenxa yalokho, lesi sigaba sikazibuthe sinamandla okugcina amanani abalulekile wamandla kazibuthe (BHmax 512 kJ/m3 noma 64 MGOe), njengoba ukuminyana kwamandla okuphezulu kuhambisana ne-Js2.
Leli nani lamandla kazibuthe licishe libe izikhathi eziyi-18 ngevolumu kanye nezikhathi eziyi-12 ngobukhulu kunokuthi "avamile"izibuthe ze-ferrite. I-Samarium cobalt (SmCo), uzibuthe wokuqala otholakala kwezohwebo we-rare-earth, unezinga eliphansi lalesi sici samandla kazibuthe kunama-alloys e-NdFeB.Izici zikazibuthe ze-Neodymium zithonywa ngempela ukwakheka kwe-alloy, inqubo yokukhiqiza, kanye nokwakheka.
Ama-athomu e-ayoni kanye nenhlanganisela ye-neodymium-boron kutholakala kwezinye izendlalelo ngaphakathi kwesakhiwo sekristalu se-Nd2Fe14B.Ama-athomu e-diamagnetic boron akhuthaza ukuhlangana ngezibopho eziqinile ezihlangene kodwa awafaki isandla ngokuqondile kumagnetism.Ozibuthe be-Neodymium babiza kancane kunozibuthe be-samarium-cobalt ngenxa yokugxila okuphansi okungavamile komhlaba (12% ngevolumu, 26.7% ngobuningi), kanye nokutholakala okuhlobene kwe-neodymium nensimbi uma kuqhathaniswa ne-samarium ne-cobalt.
Izakhiwo
Amabanga:
Umkhiqizo omkhulu wamandla kazibuthe we-neodymium—ohambisana nokukhiqizwa kwe-magnetic flux ngevolumu yeyunithi—usetshenziselwa ukuwahlukanisa.Ozibuthe abanamandla baboniswa ngamavelu aphezulu.Kukhona ukuhlukaniswa okuvamise ukuvunyelwa emhlabeni wonke komazibuthe be-NdFeB abasikiwe.Ahluka ngenani ukusuka ku-28 kuye ku-52. I-Neodymium, noma omazibuthe be-NdFeB e-sintered, iboniswa ngu-N wokuqala ngaphambi kwamanani.Amanani alandelwa izinhlamvu ezibonisa ukuphoqelelwa kwangaphakathi namazinga okushisa aphezulu okusebenza, ahlotshaniswa kahle nezinga lokushisa le-Curie futhi asukela kokumisiwe (kufika ku-80 °C noma ku-176 °F) kuya ku-TH (230 °C noma 446 °F) .
Amabanga wezibuthe ze-NdFeB ezisikiwe:
N30-N56, N30M-N52M, N30H-N52H, N30SH-N52SH, N28UH-N45UH, N28EH-N42EH, N30AH-N38AH
Phakathi kwezici ezibalulekile ezisetshenziselwa ukuqhathanisa nozibuthe abangapheli yilezi:
Remanence(Br),esilinganisa amandla kazibuthe.
Ukuphoqwa(Hhayi),ukumelana kwe-demagnetization kwempahla.
Umkhiqizo wamandla amaningi(BHmax),inani elikhulu kakhulu lezikhathi ze-magnetic flux density(B).
amandla kazibuthe, akala ukuminyana kwamandla kazibuthe (H).
Izinga lokushisa le-Curie (TC), iphuzu lapho into eyeka khona ukuba kazibuthe.
Ozibuthe be-Neodymium benza kangcono kunezinye izinhlobo zozibuthe ngokuya ngokusebenza kabusha, ukuphoqelela, nomkhiqizo wamandla, kodwa ngokuvamile babe namazinga okushisa e-Curie aphansi.I-Terbium ne-dysprosium ama-alloy uzibuthe we-neodymium akhethekile adalwe ngamazinga okushisa e-Curie aphezulu kanye nokubekezelela okuphezulu kwezinga lokushisa.Ukusebenza kuzibuthe kwe-Neodymium kuzibuthe kuqhathaniswa nokwezinye izinhlobo zikazibuthe ezihlala njalo kuthebula elingezansi.
| Umazibuthe | U-Br(T) | Hcj(kA/m) | BHmaxkJ/m3 | TC | |
| (℃) | ( ℉) | ||||
| Nd2Fe14B, sintered | 1.0-1.4 | 750-2000 | 200-440 | 310-400 | 590-752 |
| I-Nd2Fe14B, iboshiwe | 0.6-0.7 | 600-1200 | 60-100 | 310-400 | 590-752 |
| SmCo5, sintered | 0.8-1.1 | 600-2000 | 120-200 | 720 | 1328 |
| I-Sm(Co, Fe, Cu, Zr)7 sintered | 0.9-1.15 | 450-1300 | 150-240 | 800 | 1472 |
| I-AlNiCi, i-sintered | 0.6-1.4 | 275 | 10-88 | 700-860 | 1292-1580 |
| Sr-Ferrite, sintered | 0.2-0.78 | 100-300 | 10-40 | 450 | 842 |
Izinkinga Zokugqwala
Imingcele yezinhlamvu zikazibuthe onesinki isengozini yokugqwala ku-Nd2Fe14B ehlanganisiwe.Lolu hlobo lokugqwala lungaholela ekulimaleni okukhulu, njengokuqhekeka kongqimba olungaphezulu noma ukubhidlika kukazibuthe abe yimpushana yezinhlayiya zikazibuthe.
Izimpahla eziningi zentengiso zibhekana nale ngozi ngokufaka isembozo esivikelayo ukumisa ukuchayeka emvelweni.Izicwecwe ezivame kakhulu i-nickel, i-nickel-copper-nickel, ne-zinc, kuyilapho ezinye izinsimbi zingasetshenziswa, njengoba ngenza i-polymer ne-lacquer protective.ezinengilazi.
Izinga lokushisa Effects
I-Neodymium ine-coefficient engalungile, okusho ukuthi lapho izinga lokushisa likhuphuka, kokubili ukuphoqelela kanye nomthamo omkhulu wamandla kazibuthe (BHmax) wehla.Ezingeni lokushisa elizungezile, omagnethi be-neodymium-iron-boron banokuphoqelela okuphezulu;nokho, lapho izinga lokushisa likhuphuka ngaphezu kuka-100 °C (212 °F), ukuphoqelela kuyehla ngokushesha kuze kufike ezingeni lokushisa laseCurie, elicishe libe ngu-320 °C noma 608 °F.Lokhu kuncipha kokuphoqeka kukhawulela ukusebenza kahle kukazibuthe ezinhlelweni zokushisa eziphezulu ezifana nezinjini zomoya, ama-hybrid motors, njll. Ukuze uvimbele ukusebenza ekuweni ngenxa yokuguquguquka kwezinga lokushisa, i-terbium (Tb) noma i-dysprosium (Dy) iyengezwa, okwandisa izindleko uzibuthe.
Izinhlelo zokusebenza
Ngoba amandla ayo aphezulu avumela ukusetshenziswa kwamazibuthe amancane, alula kokunikeziweisicelo, Ozibuthe be-neodymium bathathe indawo yezibuthe ze-alnico kanye ne-ferrite ezinhlelweni eziningi ezingenakubalwa kubuchwepheshe besimanje lapho kudingeka khona omazibuthe abaqinile abangunaphakade.Nazi izibonelo ezimbalwa:
Ama-activators ekhanda ama-hard disk ekhompyutha
Amaswishi okudubula ugwayi we-e
Amalokhi eminyango
Izipikha zefoni ephathekayo nama-autofocus actuators
Ukuhlanganiswa kwamagnetic nama-bearings
Ama-spectrometer we-NMR ephathekayo
Izinjini zikagesi nama-Actuator
Isiteringi samandla kagesi
Amathuluzi angenazintambo
Ama-Servomotor& Amamotho e-synchronous
Izinjini zokuphakamisa kanye nama-compressor
Ama-spindle kanye nama-stepper motors
I-Hybrid kanye ne-electric car drive motors
Amajeneretha kagesi wezinjini zomoya (ezinomfutho ozibuthe unomphela)
Ama-decoupler e-media case decoupler
Ozibuthe be-neodymium abanamandla basetshenziswa ezimbonini zezinqubo ukuze bathwebule imizimba yangaphandle futhi bavikele imikhiqizo nezinqubo.
Amandla anda kaZibuthe we-Neodymium akhuthaze ukusetshenziswa okusha okufana nezinsimbi zobucwebe kazibuthe, amasethi esakhiwo kazibuthe sezingane (nenye i-neodymiumamathoyizi kazibuthe), futhi njengengxenye yomshini wokuvala wemishini yamanje ye-parachute yezemidlalo.Ziyinsimbi eyinhloko komazibuthe bedeskithoyi abake badumile abaziwa ngokuthi "Ama-Buckyballs" kanye "nama-Buckycubes," nokho Ezinye izitolo e-United States zikhethe ukungazithengisi ngenxa yokukhathazeka ngokuphepha kwezingane, futhi ziye zanqatshelwa eCanada. ngesizathu esifanayo.
Ngokuvela kwezithwebuli ezivulekile ze-magnetic resonance imaging (MRI) ezisetshenziselwa ukubuka umzimba eminyangweni ye-radiology njengendlela ehlukile kunozibuthe abakhulu, amandla kanye ne-homogeneity ye-magnetic field of neodymium magnetic nayo ivule amathuba amasha embonini yezokwelapha.
I-Neodymium Magnets isetshenziselwa ukwelapha isifo se-reflux ye-gastroesophageal njengohlelo olufakwe ngokuhlinzwa olulwa ne-reflux, okuyibhande lomazibuthe abafakwe ngokuhlinzwa eduze kwe-low esophageal sphincter (GERD).Ziphinde zatshalwa eminweni ukuze zinike amandla umuzwa wezinzwa wamagnetic field, nakuba lokhu kuwumsebenzi wokuhlola owaziwa kuphela ama-biohackers nama-grinders.
Kungani Khetha Thina
Ngesipiliyoni esingaphezu kweminyaka eyishumi,I-Honsen Magneticsuye waphumelela ngokungaguquki ekwenziweni nasekuhwebeni kwePermanent Magnets and Magnetic Assemblies.Imigqa yethu yokukhiqiza ebanzi ihlanganisa izinqubo ezibalulekile ezinjengokwenza imishini, ukuhlanganisa, ukushisela, nokubumba umjovo, okusivumela ukuthi sinikeze amakhasimende ethu nge-ONE-STOP-SOLUTION.Lawa makhono aphelele asivumela ukuthi sikhiqize imikhiqizo esezingeni eliphezulu ehlangabezana namazinga aphezulu ekhwalithi.
At I-Honsen Magnetics, siyaziqhenya ngendlela yethu yokugxila kumakhasimende.Ifilosofi yethu igxile ekubekeni izidingo nokwaneliseka kwamakhasimende ethu ngaphezu kwakho konke okunye.Lokhu kuzibophezela kuqinisekisa ukuthi asigcini nje ngokuletha imikhiqizo ehlukile kodwa futhi sihlinzeka ngesevisi enhle kakhulu kulo lonke uhambo lwamakhasimende.Ngaphezu kwalokho, idumela lethu eliyingqayizivele lidlulela nangale kwemingcele.Ngokuhlala sinikeza amanani aphusile kanye nokugcina ikhwalithi yomkhiqizo ephezulu, siye sazuza ukuduma okukhulu eYurophu, eMelika, eNingizimu-mpumalanga Asia nakwamanye amazwe.Impendulo eyakhayo nokwethenjwa esikuthola kumakhasimende ethu kuqinisa ukuma kwethu embonini.
Ulayini Wethu Wokukhiqiza
Ukuqinisekisa ikhwalithi
Ithimba lethu elithandekayo namakhasimende
Sizipakisha kanjani izimpahla
